"image_map{ ... }" II
- with Transparent Gif Images
Example:
palette image (gif)
with 256 colors
with transparent background.
background = index 215
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object{ Golf_Ball }
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=
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object{ POV_Ball } ???
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A sphere with a layered textures:
sphere{ <0,0,0>, 0.5
texture{ pigment{ color rgb<1, 1,1>}
normal{ leopard -5 scale 0.015}
finish { diffuse 0.9 phong 0.1}
} // end of texture 1
texture{ pigment{
image_map{ gif "POV-Ray_215.gif"
map_type 0
once
transmit 215, 1
}
translate<-0.5,-0.5,0>
scale<0.75,1,1>*0.85
} // end pigment
normal{ leopard -5 scale 0.015}
} // end of texture 2
} // end of sphere ------------------ |
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Lohmi...!
We have ...
... an image_map problem !
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A possible solution of this problem:
For this we have to spitt the object in two parts: frontside and backside.
//------------------------
#declare Hemisphere =
intersection {
sphere { <0,0,0>, 1}
box{ <-1,-1,-1>,<1,1,0>}
} // end of intersection
//------------------------
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Now we put textures on the frontside and backside separately:
union{
object{ Hemisphere scale 0.5 // frontside
texture{ pigment{ color rgb<1, 1,1>}
normal{ leopard -5 scale 0.015}
finish { diffuse 0.9 phong 0.1}
} // end of texture 1
texture{ pigment{
image_map{ gif "POV-Ray_215.gif"
map_type 0
once
transmit 215, 1
}
translate<-0.5,-0.5,0>
scale<0.75,1,1>*0.95
} // end pigment
normal{ leopard -5 scale 0.015}
} // end of texture 2
rotate<0,0,0>
} // end of Hemisphere -------------------------
object{ Hemisphere scale 0.5 // backside
texture{ pigment{ color rgb<1, 1,1>}
normal{ leopard -5 scale 0.015}
finish { diffuse 0.9 phong 0.1}
} // end of texture 1
texture{ pigment{
image_map{ gif "POV-Ray_215.gif"
map_type 0
once
transmit 215, 1
}
translate<-0.5,-0.5,0>
scale<0.75,1,1>*0.95
} // end pigment
normal{ leopard -5 scale 0.015}
} // end of texture 2
rotate<0,180,0>
} // end of Hemisphere -------------------------
//scale 0.04 // optional downsized to 4 centimeters
translate <0,0.5,0>
rotate <0,60,0>
} // end of union "Golf_Ball" --------------
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Frontside
Backside
golf ball
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